Flying JB (OverSky Jailbreak)

Min Zheng has announced Flying JB (OverSky/aka Flying jailbreak) for iOS 9.3.4 as well as iOS 9.2.1 versions. However, these were not released to the public and consider as private jailbreak tools.


Min Zheng/Min(Spark) Zheng is famous as Android & iOS Senior Security Engineer at Alibaba. Also he was credited for the vulnerabilities in iOS versions prior to iOS 9 by Symantec on 16th September 2015.






iOS 11.3.1 Jailbreak

Again Min Zheng comes with iOS 11.3.1 Jailbreak. Spark (@SparkZheng) and Bxl (@bxl1989) published iOS 11.3.1 Jailbreak demonstration video on youtube as well as the twitter page. However, there is no any hint about public release if this iOS 11.3.1 Jailbreak. Sometimes they won’t release it to the public as earlier OverSky Jailbreaks.



iOS 11.3 Jailbreak

Min Zheng continuously worked on iOS 11.3 Jailbreak. This time Zheng has confirmed that he has successfully jailbreak iOS 11.3 with his latest tweet.


He always shared the progress of work through Twitter and before this he twitted as he wasn’t able to remount roofts and get R/W privileges to install Cydia.


Even if it is real iOS 11.3 jailbreak, most likely private Jailbreak same as his previous Jailbreak tools.




Min Zheng again supprised jailbreak community by achieving root shell access on iOS 11.3. It is an essential part of iOS 11.3 Jailbreak. He informed this via his official twitter ac. Check below screen shot.



A couple of days ago he discovered new kernel vulnerability survive in iOS 11.3 versions. It exists in iOS 11.2.6 and Older versions too. Zheng tweeted it via his official Twitter page. Still, Zheng has not confirmed further details about the exploits. Apparently, this would be useful to develop an iOS 11.3 jailbreak tool.



OverSky iOS 9.3.4 Jailbreak

Min Zheng announced iOS 9.3.4 Jailbreak method. He published a youtube video demonstration of iOS 9.3.4 OverSky (aka Flying) Cydia Installation process using iPhone 6. It shows an app called ‘OverSky’ being launched that performs actions like “exploiting kernel” → “Patching Kernel” → ‘Installing Cydia. Watch the following Video.



Flying JB iOS 9.2.1 Jailbreak

Min Zheng has demonstrated jailbreak method for iOS 9.2.1 via youtube video. Flying JB is based on inpuTbag (after the popular Prison Break character Tbag), a 15-year-old kernel HeapOverFlow vulnerability.


The demo shows ‘Flying JB’ app is successfully jailbreaking iPhone 5c running iOS 9.2.1. Flying JB tool is a little bit different than other jailbreak tools. Cause, when running the JB tool, it installs the terminal app into the home screen. It means it is not 100% complete jailbreak. Therefore we have to run the terminal app manually if we need to complete the full jailbreak.





And other side, even if, he has entered into the system root of the device by jailbreaking, it has no publish any note, it is possible to install Cydia automatically or at least by manually.



Min Zheng’s video has end, when it enter the system root using Flying JB tool. So, it has little bit doubt about the success of it. As the new JB tool developer he must prove the possibility of installing Cydia using same video. Watch following video carefully. However, he has mentioned Apple has fixed this vulnerability in iOS 9.3.2.




Flying JB’s guide

Download the needed files via https://github.com/zhengmin1989/iOS_ICE_AND_FIRE. There is readme file inside of the zip. Need to follow it for the jailbreak perfection.


Flying JB tool for latest iOS versions

If the flying JB tool needs to go future, it wants to expand. Working only with 32 bit devices is not enough, when discuss about latest iOS versions. Flying JB tool needs to work with 64 bit devices too. All the latest iDevices are 64-bit devices. Already there are several jailbreak tools available for iOS 11 & higher versions.


What so ever, it needs the complete jailbreak using the tool. When check his above video it can identify that after run the Flying JB tool, it installs terminal app only. Then the terminal app should run to complete the jailbreak manually. Without having codes and apps knowledge, it can not complete the jailbreak for Cydia.


Complete the jailbreak as well as installing Cydia with flying JB tool is little bit hard than other JB tools, when watch the video. There is no any news how to install Cydia after complete the jailbreak too. So, all of these issues should manage, if this tool works with latest iOS versions.





Reliability of OverSky Jailbreak tool among the jailbreak lovers

Lot of Jailbreak lovers aware of every new releases related jailbreak just like this tool. Most of them say that this tool is fake. Few of them trust this. Actually it has some doubt to trust, when compare all the information about Flying JB tool. These info got from the jailbreak users to prove it. So, following screen shots witnesses for that.


  • Users are well known about this jailbreak much.


  • Excited comment from excited user.


  • It has given excellent explain from Flying JB tool lover for another user, who claim this tool is fake.


  • Some negative thinking about this tool.


  • One of the users has given positive comment about the tool.


  • One user reveals one of the fake Flying JB twitter accounts. Actually it is not official account. Min Zheng also informs it via his twitter account. see the following picture to know Min Zheng’s announcement.



When comparing Flying JB with TaiG jailbreak, PP Jailbreak and also Pangu jailbreak, it is not sure about JB tool release of this in the future. At least jailbreak possibility proven also is in zero marks, when comparing with the iH8sn0w jailbreak, i0n1c jailbreak.






iOS 11.2 to iOS 11.4 Jailbreak

The head of Pandora Lab Song Yang has discovered the pandora Jailbreak for iOS 11.2/iOS 11.2.1. They did not release any public tool yet. However, UDID registration method and Dev Code extraction method compatible with iOS 11.2.5/iOS 11.2.6 Jailbreak, iOS 11.3 Jailbreak, iOS 11.3.1 Jailbreak as well as iOS 11.4 Jailbreak. So far these methods are the best jailbreak app installation methods for these versions.



Saigon Jailbreak

Saigon jailbreak tool released to jailbreak iOS 10.2.1 version. Saigon is developed by Abraham Masri (iabem97/cheesecakeufo), and It is a semi-untethered jailbreak method.Saigon does not use new exploits and only chains together triple_fetch exploit+ziVA exploit+extra_recipe exploits to jailbreak your device.



Keen Lab

KeenLab proved the iOS 11.1.1 /iOS 11 jailbreak possibility. Liang Chen was demonstrated at MOSEC about their jailbreak method using iOS 11 beta 2 & iOS 10.3.2 as well as iOS 11.1.1 jailbreak at PoC 2017. But they did not release public tool yet. However, it has many jailbreak tools for iOS 11 & higher versions now.




Phoenix Jailbreak

Phoenix jailbreak released jailbreak tool for iOS 9.3.5 running 32-bit devices. This is a semi-untethered jailbreak, and both online, and pc required jailbreak method available with this tool.


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